2021102211021 has 8 divisors (see below), whose sum is σ = 2695097145024. Its totient is φ = 1347254375520.

The previous prime is 2021102211019. The next prime is 2021102211031. The reversal of 2021102211021 is 1201122011202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2021102211021 - 2¹ = 2021102211019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021102211031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36742561 + ... + 36797526.

It is an arithmetic number, because the mean of its divisors is an integer number (336887143128).

Almost surely, 2^{2021102211021} is an apocalyptic number.

It is an amenable number.

2021102211021 is a deficient number, since it is larger than the sum of its proper divisors (673994934003).

2021102211021 is an equidigital number, since it uses as much as digits as its factorization.

2021102211021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73549251.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2021102211021 its reverse (1201122011202), we get a palindrome (3222224222223).

The spelling of 2021102211021 in words is "two trillion, twenty-one billion, one hundred two million, two hundred eleven thousand, twenty-one".